Tesco is facing Britain's largest ever equal pay claim and a possible compensation bill of up to 4 billion pounds (C$7 billion), according to a law firm which has begun legal proceedings. It comes as a campaign for equal pay grows in the U.K.

Pregnant workers more vulnerable to health risks

During pregnancy, workers often become more vulnerable to health risks in the workplace — and pregnancy may trigger the right to refuse unsafe work.

That’s according to a recent ruling by the Supreme Court of Canada, which reinforced some of the legal protections offered to pregnant workers in Quebec.

In Dionne v. Commission scolaire des Patriots, the Supreme Court considered the case of a pregnant supply teacher, Marilyne Dionne, who was advised by her doctor she was susceptible to a number of harmful viruses. Her work environment — the classroom — posed a health risk because children are common carriers of some of the viruses.